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8.0 GENERAL INFORMATION
IRN37–160K–CC & IRN50–200H–CC & IRN75–160K–2S & IRN100–200H–2S
50
KEY
1ATS
Switch, high airend discharge temperature
1ATT
Sensor, inlet temperature
1DPS
Switch, fouled oil filter
1VAC
Switch, fouled air filter
2APT
Interstage pressure
2ATT
Sensor, airend discharge temperature
2CTT
Sensor, injected coolant temperature
3APT
Transducer, sump pressure, wet side
3SV
Valve, blowdown solenoid
4APT
Transducer, package air discharge pressure
4ATT
Sensor, package discharge temperature
6APT
Transducer, sump air pressure, dry side
9APT
Transmitter, remote air pressure (optional)
9SV
Valve, condensate drain
11SV
Valve, anti – condensation
AT
Autotransformer (if fitted)
AW1
Auxiliary warning 1
AW2
Auxiliary warning 2
BP
Backplate
C
Capacitor
CK
Choke
CAB
Cabinet
CDE
Condensate drain error (optional)
CDV
Condensate drain valve. (if fitted)
CFO
Common fault output
DR
Drive
EB
Earth bar
ES
Switch, emergency stop
EXC
External communications
FD
Fan drive
FM
Motor, Blower
GND
Ground
HB
Heatsink blower
HTRI
Heater 125 watts
K1
Relay, run
K2
Relay fault
KM1
Contactor, main motor
KM5
Contactor, heatsink blower
MCB1 Breaker, miniature circuit, transformer
MCB2 Breaker, miniature circuit, control circuits
MCB3 Breaker miniature circuits. DR
MCB4 Breaker, miniature circuit, PSU
MCB9 Breaker, miniature circuit, heater
MF
Mains filter (if fitted)
MM
Motor, main drive
MMS1 Breaker, blower motor
MMS2 Breaker, heatsink blower
OPT
Optional
OV
Zero voltage
PE
Protected earth
PORO Power outage restart option (optional)
PSU
Power supply unit
RFI
Filter, radio frequency interference
RSP
Remote stop
RST
Remote start
SGN
Controller, Intellisys
SL
Serial link
SS1–3 Relay, solid state
ST
Service tool
T1
Transformer, control
TH
Thermostat
TRR
True running
Colors
BLK
Black
BLU
Blue
BRO
Brown
GRE
Green
PIN
Pink
RED
Red
SCR
Screened
Screened
VIO
Violet
WHI
White
YEL
Yellow
Wires
Numbers
Function
Wire color
1–99
Power
Black
100–199
AC Control
Red
200–299
DC Control
Blue
300–399
Auxiliary
Orange